Exercise mat



FIG. 1 is a perspective view of an exercise mat showing my new design;

FIG. 2 is top plan view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is rear elevation view thereof;

FIG. 5 is left side elevation view thereof;

FIG. 6 is a right side elevation view thereof; and,

FIG. 7 is a bottom plan view thereof. 

CLAIM The ornamental design for exercise mat, as shown and described. 